Publications

Vacuum gap microstrip microwave resonators for 2.5-D integration in quantum computing

Lewis, Rupert; Henry, Michael D.; Schroeder, Katlin S.

Vacuum gap λ/2 microwave resonators are demonstrated as a route toward higher integration in superconducting qubit circuits. The resonators are fabricated from pieces on two silicon chips bonded together with an In-Sb bond. Measurements of the devices yield resonant frequencies in good agreement with simulations. Creating low loss circuits in this geometry is also discussed.